- accuracy 和 precision 的区别是什么？ - 知乎
accuracy指的是准确度，具体的衡量方式是（测量值-真值）取绝对值。测量值就是试验结果，可能是仪器测量，可能是公式推算等等。真值是事物的一种固有属性，是一个“假想值”，无法精确获得。
- 在机器学习中AUC和accuracy有什么内在关系？ - 知乎
首先，AUC对应的不是一个accuracy，而是一系列accuracy。AUC是ROC的"线下面积"，而ROC是以FPR-TPR为坐标的一条线，实际上是连接一系列散点的一条折线。这条折线上的每一个点，对应了一个threshold，以及由这个threshold确定的预测值及其accuracy、precision、recall等等的度量。
- Precision and Accuracy - 知乎
Accuracy is the proximity of measurement results to the true value Accuracy指的是测量结果和真实结果的接近程度。 在心理学度量中， precision 类似于reliability（即信度）；accuracy类似于validity（即效度）。
- What type of accuracy are you getting from your Socom 16 II
Accuracy - how close the impacts are to the point of aim (POA), this is usually a measure of the shooter's ability People usually use the word accuracy when in fact they mean precision and, as I said earlier, precision is a matter of the quality of the barrel and by extension all the component parts of the firearm; barrel, stock, sights, and
- Accuracy Vs Resistance Graph : r RaidShadowLegends - Reddit
For example use accuracy of 148, 158, 168, 178, 188, 198 for UNM Once you find the accuracy that gives your debuff chance as close to 50% as possible, then we know the UNM boss will have that value + 42 of resistance Then from there, the optimal value for acc would be the boss' resistance + 20
- Which are some accurate, free IQ test? : r cognitiveTesting - Reddit
Welcome to the world's largest forum for anything related to cognitive testing The subreddit is flexible with other related topics, such as neuroscience, psychology, philosophy, AI, and more
- 精确率、召回率、F1 值、ROC、AUC 各自的优缺点是什么？ - 知乎
你拿着这个accuracy高达99%的模型屁颠儿屁颠儿的去预测新sample了，而它一个正例都分不出来，有意思么。。。 也有人管这叫accuracy paradox。 那么，除了accuracy以外有没有什么别的更有用的metric呢？ 有，precision 和 recall。上个图帮助说明一下。
- 为什么神经网络accuracy值很高，但是F1,recall,precision特别差?
对于这个问题，首先要清楚accuracy，F1，recall，precision等概念的含义，为了弄清楚这些概念，以二分类（正，负）为例，现定义如下符号： TP : Ture Positive 把正的判为正的数目，即正的预测为正的；
|